Validate and parse International Bank Account Numbers (IBAN). Check format, country, and MOD-97 check digits.
Frequently Asked Questions
An IBAN (International Bank Account Number) is a standardized international numbering system used to identify bank accounts across national borders. It consists of a country code, check digits, and a Basic Bank Account Number (BBAN) whose format varies by country.
IBAN validation uses the MOD-97 algorithm defined in ISO 13616. The country code and check digits are moved to the end, letters are converted to numbers (A=10, B=11, etc.), and the resulting number must be divisible by 97 with a remainder of 1.
This tool validates the format and check digits of an IBAN but does not verify that the account actually exists at a real bank. Always confirm account details with your bank before making transfers.